51199396 has 24 divisors (see below), whose sum is σ = 90972000. Its totient is φ = 25210752.

The previous prime is 51199373. The next prime is 51199397. The reversal of 51199396 is 69399115.

51199396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51199397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102355 + ... + 102853.

It is an arithmetic number, because the mean of its divisors is an integer number (3790500).

Almost surely, 2^51199396 is an apocalyptic number.

It is an amenable number.

51199396 is a deficient number, since it is larger than the sum of its proper divisors (39772604).

51199396 is a wasteful number, since it uses less digits than its factorization.

51199396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 841 counting only the distinct ones).

The product of its digits is 65610, while the sum is 43.

The square root of 51199396 is about 7155.3753220918. The cubic root of 51199396 is about 371.3256465168.

The spelling of 51199396 in words is "fifty-one million, one hundred ninety-nine thousand, three hundred ninety-six".